inspiring fans to download episodes on itunes or amazon or to stream them on netflix, helping media giants extend the life of their brands. the fact that it is now easy for people to binge on shows long after they leave the air grows the potential fan base for these kinds of auctions. >> the availability of the streaming services for people to access the show wherever they want and to revisit these characters, revisit these story lines is going to make the demand really high. >> there are no official estimates, but the business of selling hollywood memorabilia generates at least a billion dollars in annual sales according to screen bid's chairman. a sale of breaking bad props brought in more than $65,000 for walter white's copy of leaves of grass alone. so some of these items could get up into the tens or even hundreds of thousands of dollars, for something like don draper's car. for "nightly business report," i'm julia boorstin in los angeles. >>> coming up, why researchers may have a whole new set of options when it comes to treating depression, substance abuse, even ptsd. the second par